public byte[] Save(IEnumerable <Color> colors)
{
var ms = new MemoryStream();
using (var bw = new BinaryWriterX(ms, true, ByteOrder.BigEndian))
foreach (var color in colors)
{
ushort val = 0;
if (color.A == 255)
{
val |= 1 << 15;
val |= (ushort)(Support.ChangeBitDepth(color.R, 8, 5) << 10);
val |= (ushort)(Support.ChangeBitDepth(color.G, 8, 5) << 5);
val |= (ushort)Support.ChangeBitDepth(color.B, 8, 5);
}
else
{
val |= (ushort)(Support.ChangeBitDepth(color.A, 8, 3) << 12);
val |= (ushort)(Support.ChangeBitDepth(color.R, 8, 4) << 8);
val |= (ushort)(Support.ChangeBitDepth(color.G, 8, 4) << 4);
val |= (ushort)Support.ChangeBitDepth(color.B, 8, 4);
}
bw.Write(val);
}
return(ms.ToArray());
}
public IEnumerable <Color> Load(byte[] input)
{
using (var br = new BinaryReaderX(new MemoryStream(input), ByteOrder.BigEndian))
{
while (br.BaseStream.Position < br.BaseStream.Length)
{
var value = br.ReadUInt16();
if ((value & 0x8000) == 0x8000)
{
yield return(Color.FromArgb(
255,
Support.ChangeBitDepth((value >> 10) & 0x1f, 5, 8),
Support.ChangeBitDepth((value >> 5) & 0x1f, 5, 8),
Support.ChangeBitDepth(value & 0x1f, 5, 8)
));
}
else
{
yield return(Color.FromArgb(
Support.ChangeBitDepth((value >> 12) & 0x7, 3, 8),
Support.ChangeBitDepth((value >> 8) & 0xf, 4, 8),
Support.ChangeBitDepth((value >> 4) & 0xf, 4, 8),
Support.ChangeBitDepth(value & 0xf, 4, 8)
));
}
}
}
}
